CN2556746Y

CN2556746Y - Rotary light-emitting diode full color display device

Info

Publication number: CN2556746Y
Application number: CN02237035U
Authority: CN
Inventors: 吴苍根
Original assignee: Pu Dayuan
Current assignee: Pu Dayuan
Priority date: 2002-06-05
Filing date: 2002-06-05
Publication date: 2003-06-18
Anticipated expiration: 2012-06-05

Abstract

The utility model provides a total chromatic display device of a rotary light emitting diode, wherein, a slewing axis of an electric motor is provided with a rotary body which can scan a disk or cylindrical two-dimensional virtual picture; the rotary body is internally provided with the arrangement of one dimensional red, green and blue light emitting diodes which can scan the two-dimensional virtual picture and is allocated with a query sensor which can find out angular positions of the arrangement of the light emitting diodes; a control part finds out the angular positions of the light emitting diodes through the sensor so as to control designs formed on the two-dimensional virtual picture; when rotating, the control part makes make-and-break judgment of the red, green and blue light emitting diodes orderly in the virtual picture according to required display designs to display pixel units in the two-dimensional arrangement in the virtual picture and form photogenes of mixed colors of the pixel units in the two-dimensional arrangement in the virtual picture. The utility model has the advantages of displaying full-color images with a plurality of colors, greatly reducing the amount of light emitting diodes, simplifying a control circuit, reducing manufacturing cost and decreasing electricity consumption and being suitable for promotion advertisements.

Description

The panchromatic display device of a kind of rotation light emitting diode

Technical field

The utility model relates to a kind of light-emitting display apparatus, the panchromatic display device of particularly a kind of rotation light emitting diode.

Background technology

Advertisement and propagate used various demonstration equipment, as fiber optics, light emitting diode, LCD etc., the exploitation along with the light emitting diode of high-intensity and polychrome has obtained remarkable progress.The improvement of display devices of being made up of above-mentioned equipment is greatly improved, and display device commonly used has large-scale beautiful tower luminous plate, subway guide luminous plate etc. to use as products propaganda and advertisement.

But above-mentioned 2 dimensions of utilizing are arranged the light-emitting display apparatus of display text, the 2 dimension arrangement architectures of forming light emitting diode because of need need many light emitting diodes, and need the circuit of driven for emitting lights diode, its control method is also very complicated, has color dullness, cost height, shortcoming that power consumption is big.

Content of the present utility model

The purpose of this utility model is that the light emitting diode quantity that solves in the above-mentioned technology is many, the dull control circuit complexity of color, the problem that the high power consumption of cost is big, the utility model adopts to be arranged each light emitting diode (LED) with 1 dimension, and should each 1 dimension diode be arranged in the virtual 2 dimension frames rotation and obtain afterimage effect, and utilize the driving time of control light emitting diode to make up this glow color to form full-colour image.In the explanation afterwards, R, G, B respectively represent red, green, blue.

The purpose of this utility model realizes by following technical scheme.In the utility model, comprise motor with turning axle, but the rotary body of scanning disk shape or cylindrical shape 2 dimension virtual frames is installed in the turning axle of motor, rotary body is can keep the speed drive of afterimage effect, the 1 dimension light emitting diode that can scan 2 dimension virtual frames is housed in rotary body to be arranged, and dispose the query sensors of finding the position angle that light emitting diode arranges, find the position angle of light emitting diode by sensor by control part, control is formed on the pattern on the virtual 2 dimension frames, the light emitting diode that 1 dimension that is equipped with in described rotary body is arranged is arranged and is comprised the arrangement of R light emitting diode, the G light emitting diode is arranged, the B light emitting diode is arranged, when rotation, according to the pattern that requires in the virtual frames to show, in virtual frames, come the described R of break-make in order by control part, G, the B light emitting diode, make in virtual frames, to show the pixel unit of arranging with 2 dimensions, and in virtual frames, form the after image of the blend color of respectively this pixel unit of arranging with 2 dimensions.Described R, G, B light emitting diode are arranged and are radially radiated arrangement with equi-angularly space from axis of rotation.Respectively drive respectively by the pixel unit driving time of described control part with different duty factors with R, G, B light emitting diode.

As mentioned above, to form light emitting diode with each R, G, B light emitting diode that 1 dimension is arranged in the utility model arranges, thereby 1 dimension light emitting diode is arranged in rotation acquisition afterimage effect in the virtual 2 dimension frames, and the driving time of control light emitting diode is with the illuminated in combination color, compared with prior art with three kinds of less colors 1 the dimension light emitting diode, constitute this light-emitting display apparatus, can show the full-colour image of multiple color, improve advertising effect more.Light emitting diode quantity in the utility model greatly reduces in addition, and control circuit is simplified, and cost is low, and power consumption reduces in the use.

Description of drawings

Fig. 1 is the structural drawing of the magnetic disc type embodiment of the panchromatic display device of the utility model,

Fig. 2 is the process flow diagram of the panchromatic display packing of explanation the utility model,

Fig. 3 is the schematic diagram of the panchromatic display frame of explanation the utility model,

Fig. 4 is the structural drawing of the virtual diode pixel on 2 dimension frames,

Fig. 5 distributes conversion timing figure at the time of frame virtual diode pixel.

The symbol description of major part among the figure

10 motors, 12 query sensors

14 R look display fields, 16 G look display fields

16 B look display fields, 20 R light emitting diodes are arranged

22 G light emitting diodes are arranged 24 B light emitting diodes and are arranged

26 motor driving parts, 28 R drive divisions

30 G drive divisions, 32 B drive divisions

34 storeies, 36 order input parts

38 control parts, 40 viewing areas

Embodiment

Be illustrated in figure 1 as the structural representation of the panchromatic display device of magnetic disc type of the present utility model, comprise motor 10, query sensors 12,13, R look display field 14, G look display field 16, B look display field 18.

R, G, B look display field the 14,16, the 18th with isogonism, radially radiate extension promptly with 120 degree configurations, and from axis of rotation.3

display fields

14,16,18 are configured to isogonism help keeping the balance of rotating.In R look display field 14, R light emitting diode 20 is formed a line.In G look display field 16, G light emitting diode 22 is formed a line.In B look display field 18, B light emitting diode 24 is formed a line.

R, G, B light emitting diode rd, gd, bd arrange 20,22,24 and form rotary annular 2 dimension frames 40 when motor 10 rotations, and these annular 2 dimension frames 40 will become light emitting diode rd, gd, bd arranges 20,22, the 24 virtual viewing areas of scanning.

When note observing above-mentioned annular 2 dimension frames 40, light emitting diode can be arranged 20,22, the 24 diode matrixes that resolve to continuous fan-shaped array.In the present embodiment, adopting the rotation external diameter is that 1200mm, internal diameter are when being the 2 dimension frame viewing areas 40 of 350mm, 1 dimension array of above-mentioned R, G, B light

emitting diode arrangement

20,22,24 is respectively lined up 4, spend to 2 dimension frames of 360 degree from 0 and to be divided into 576 when changing, 2 dimension frames will become with 2 dimensions of 576 row, 48 row arranges virtual display space.

Query sensors 12 is to detect the rotational speed of motor 10 or the common scrambler of light emitting diode arrangement position, is connected sensor 12,13 and forms with colored by the rotating circular disk 12a that is fixed in motor 10 turning axles.When perforation 12b, the 13b that forms when the edge of rotating circular disk 12a passes sensor 12,13, that control part will detect the position, visual angle of demonstration and be arranged in 360 degree display spaces 40 and belong to 1～576 row light emitting diode and arrange 20,22,24 row (position angle).In the present embodiment, be the conversion of 576 times light emitting diode making every track (row), in rotating circular disk 12a, arrange 576 conversion perforation 12b after, utilize sensor 12 to detect.In rotating circular disk 12a, formed a perforation 13b in addition, made control part can detect the initial point of viewing area 40 by sensor 13.Thereby control part begins from detect initial point sensor 13, detects and count out perforation 12b in sensor 12 in order, can be identified in the specific pixel that display space is arranged with 2 dimension frames, and calculates the switching time of light emitting diode.

Motor 10 is equipped with fast rotational the

display field

14,16,18 of diode array.In the present embodiment, per second is controlled at 40 rotational speeies of changeing.Thereby, light a lamp in the diode array on the

display field

14,16,18 and the after image rotational trajectory that stays has caused annular display frame 40.

In the present embodiment, arrange 576 virtual LEDs in every track row, during speed drive that

display field

14,16,18 is changeed with per second 40, the maximum durations of a virtual pixel lamp of virtual 2 dimension frame 40 mid points for about 44ms (25000msl/576) as shown in Figure 4.

Thereby control part 38 maybe can be to the lamp of virtual representation vegetarian refreshments R, a G, B diode, and maybe can move the light-off converter is the unit combined colors with the diode pixel with 2 virtual pixels of tieing up frames.

In the present embodiment, arrange for drive motor and light emitting diode and need comprise circuit part.In circuit part, comprise motor driving part 26, R drive division 28, G drive division 30, B drive division 32, storage part 34, order input part 36, control part 38.

This motor 10 of rotation after the drive signal that motor driving part 26 reception control parts 38 are sent.Motor-driven speed in the present embodiment is that per second 40 changes.

After 28,30,32 ones of R, G, B drive divisions receive each R frame data that control part 38 provides, G frame data, B frame data, R, G, B light emitting diode are arranged 20,22,24 light emitting diode with the open and close state-driven.Each light emitting diode responds R, G, 3 color combination data of B, 8 colors capable of being combined in the present embodiment, and and for example Fig. 5 was set at for 1～8 stage with each R, G, B LED load (duty) cycle (Pw/T), and makes that it is capable of being combined 512 (promptly 8 ³) plant color, and can show more color with the control of load faster.

Storer 34 is made up of ROM, SRAM, DRAM, EEPROM, flash of light storer etc.In storer 34 with R, G, the B frame unit video data that saves colors.

Order input part 36 comprises order such as power key, mode setting button enter key, and provides the key signals that is taken place for control part 38.

Control part 38 comprises central processing unit (CPU), clicks generator, storer reads, light circuit etc.Control part 38 provides the level of rotating 1 time in the above-described embodiments to count, and such as 576 cylindrical data, the specification of several 48 * 576 cylinders of arranging with light emitting diode of light emitting diode shows the display frame of a width of cloth frame.

Fig. 2 is the process flow diagram of explanation panchromatic luminous display packing of the present utility model.When control part 38 receives power on command by order input part 36 (100), drive and rotation (102) this motor 10 by motor driving part 26.Again by the virtual pixel light emitting diode in the rotational speed corresponding display region 40 of query sensors 12,13 drivings (104) and motor 10.

When motor 10 exceeds certain rotation speed, carry out the task (106) of finding the motor rotation angle by query sensors 12,13.If when finding signal in the query sensors 13, control part 38 is identified as 0 degree (108) with rotation angle.The rotation angle 0 degree position at these state representation display field 14 places is a starting point, thereby reads the R frame data from storer 34, will be by R drive division 28 with after the open and close state-driven R light emitting diode arrangement 20, and beginning video data (114).Thereby as shown in Figure 3, t0 shows the cylinder data of R frame (RF1) in the time.

Control part 38 begins the signal of finding of counting inquiry sensor 12 from 0 degree of rotation angle, and whenever has the rotation angle of regarding as virtual 1 pixel when finding signal to rotate.

Because of the number of light emitting diode on each track in an embodiment is 576, so when the finding the signal-count value and be 192 of sensor 12, rotation angle is 120 to spend (110).Check out that rotation angle is 120 when spending, the display field 16 of this moment reaches the starting point of rotation angle 0 degree position, thereby read the G frame data from storer 34 after, drives the G light emitting diode by G drive division 30 with on-off mode and arrange 22 beginning display mode data (116).Thereby, as shown in Figure 3, in the time (t0+d1), show the 1st cylinder data of G frame (GF1).

Control part 38 once more sensor for countering 12 find signal, when reaching 384, rotation angle is 270 degree (112), if find rotation angle and be 270 when spending, display field 18 is for reaching the initial point of rotation angle 0 degree position, thereby after from storer 34, reading the B frame data, drive the B light emitting diode by B drive division 32 in the open and close mode and arrange 24, beginning video data (118).Thereby, as shown in Figure 3, in the time (t0+d2), show the 1st cylinder data of B frame (BF1).

Then, from finding 270 degree rotation angle, the colored video data of the 1st cylinder of synthetic colorful frame (CF1) is from display color video data visually.That is, from visually R, G, B pixel data show with the mistiming of t0, t0+d1, t0+d2, but from space angle, be overlapping demonstration on same pixel position.Therefore, because of afterimage effect from visually being considered as a colour element R (t0)+G (t0+d1)+B (t0+d2).

In control part 38 if when not having the power-off order in (114), (116) and (118) stage, carry out (106) stage, if when having received the powered-down order (120), stop motor rotation (122) back and finish.

Above-mentionedly be illustrated with the desirable embodiment of the utility model.In addition, the thought of the present utility model that the skilled party in present technique field can put down in writing in the present patent application scope, modifications and changes the utility model in every way, these modifications and changes should belong to the utility model scope.

Claims

1, the panchromatic display device of a kind of rotation light emitting diode, it is characterized in that: comprise motor with turning axle, but the rotary body of scanning disk shape or cylindrical shape 2 dimension virtual frames is installed in the turning axle of motor, rotary body is can keep the speed drive of afterimage effect, the 1 dimension light emitting diode that can scan 2 dimension virtual frames is housed in rotary body to be arranged, and dispose the query sensors of finding the position angle that light emitting diode arranges, find the position angle of light emitting diode by sensor by control part, control is formed on the pattern on the virtual 2 dimension frames, the light emitting diode that 1 dimension that is equipped with in described rotary body is arranged is arranged and is comprised the arrangement of R light emitting diode, the G light emitting diode is arranged, the B light emitting diode is arranged, when rotation, according to the pattern that requires in the virtual frames to show, in virtual frames, come the described R of break-make in order by control part, G, the B light emitting diode, make in virtual frames, to show the pixel unit of arranging with 2 dimensions, and in virtual frames, form the after image of the blend color of respectively this pixel unit of arranging with 2 dimensions.

2, the panchromatic display device of rotation light emitting diode according to claim 1 is characterized in that: described R, G, B light emitting diode are arranged and are radially radiated arrangement with equi-angularly space from axis of rotation.

3, the panchromatic display device of rotation light emitting diode according to claim 1 and 2 is characterized in that: respectively driven respectively with different duty factors by the pixel unit driving time of described control part with R, G, B light emitting diode.